Add level attribute to gzip task. PR 52414
git-svn-id: https://svn.apache.org/repos/asf/ant/antlibs/compress/trunk@1577923 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/changes.xml b/changes.xml
index ac5efea..1fe9e6c 100644
--- a/changes.xml
+++ b/changes.xml
@@ -51,6 +51,10 @@
Multiple content compression/encryption/filter methods can now
be specified via nested elements of the sevenz task.
</action>
+ <action type="add" issue="52414">
+ The gzip task has a new attribute that controls the level of
+ compression.
+ </action>
</release>
<release version="1.4" date="2014-01-29">
diff --git a/docs/pack.html b/docs/pack.html
index 40ebb00..f878a16 100644
--- a/docs/pack.html
+++ b/docs/pack.html
@@ -103,6 +103,24 @@
<p>Is a <a href="#pack">compressing task</a> that uses the GZIP
compression algorithm.</p>
+ <p>This task supports the following additional attributes:</p>
+
+ <table border="1" cellpadding="2" cellspacing="0">
+ <tr>
+ <td valign="top"><b>Attribute</b></td>
+ <td valign="top"><b>Description</b></td>
+ <td align="center" valign="top"><b>Required</b></td>
+ </tr>
+ <tr>
+ <td valign="top">level</td>
+ <td valign="top">Non-default level at which file compression
+ should be performed. Valid values range from 0 (no
+ compression/fastest) to 9 (maximum
+ compression/slowest). <em>Since Compress Antlib 1.5</em></td>
+ <td valign="top" align="center">No</td>
+ </tr>
+ </table>
+
<h3><a name="pack200">Pack200</a></h3>
<p>Is a <a href="#pack">compressing task</a> that uses
diff --git a/src/main/org/apache/ant/compress/taskdefs/GZip.java b/src/main/org/apache/ant/compress/taskdefs/GZip.java
index 05b1b10..97b9b00 100644
--- a/src/main/org/apache/ant/compress/taskdefs/GZip.java
+++ b/src/main/org/apache/ant/compress/taskdefs/GZip.java
@@ -18,23 +18,48 @@
package org.apache.ant.compress.taskdefs;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.zip.Deflater;
+
import org.apache.ant.compress.resources.CommonsCompressCompressorResource;
import org.apache.ant.compress.resources.GZipResource;
import org.apache.ant.compress.util.GZipStreamFactory;
+import org.apache.commons.compress.compressors.CompressorOutputStream;
+import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream;
+import org.apache.commons.compress.compressors.gzip.GzipParameters;
import org.apache.tools.ant.types.Resource;
/**
* Compresses using gzip.
*/
public final class GZip extends PackBase {
+ private int level = Deflater.DEFAULT_COMPRESSION;
public GZip() {
- super(new GZipStreamFactory(),
- new PackBase.ResourceWrapper() {
+ super(new PackBase.ResourceWrapper() {
public CommonsCompressCompressorResource wrap(Resource dest) {
return new GZipResource(dest);
}
});
+ setFactory(new GZipStreamFactory() {
+ public CompressorOutputStream getCompressorStream(OutputStream stream)
+ throws IOException {
+ GzipParameters params = new GzipParameters();
+ params.setCompressionLevel(level);
+ return new GzipCompressorOutputStream(stream, params);
+ }
+ });
}
-}
\ No newline at end of file
+ /**
+ * Set the compression level to use. Default is
+ * Deflater.DEFAULT_COMPRESSION.
+ * @param level compression level.
+ * @since 1.5
+ */
+ public void setLevel(int level) {
+ this.level = level;
+ }
+
+}
diff --git a/src/tests/antunit/gunzip-test.xml b/src/tests/antunit/gunzip-test.xml
index b00c511..77fb8a8 100644
--- a/src/tests/antunit/gunzip-test.xml
+++ b/src/tests/antunit/gunzip-test.xml
@@ -54,6 +54,14 @@
actual="${output}/asf-logo.gif"/>
</target>
+ <target name="testAntlibGzipTaskWithLevel" depends="setUp">
+ <cmp:gzip src="../resources/asf-logo.gif" level="9"
+ destfile="${output}/asf-logo.gif.gz"/>
+ <cmp:gunzip src="${output}/asf-logo.gif.gz" dest="${output}/asf-logo.gif" />
+ <au:assertFilesMatch expected="../resources/asf-logo.gif"
+ actual="${output}/asf-logo.gif"/>
+ </target>
+
<target name="testNativeGzip" depends="setUp">
<cmp:gunzip src="../resources/asf-logo.gif.gz"
dest="${output}/asf-logo.gif" />
